Bucket conveyer



Dec- 99 F. B. ANDRUS BUCKET CONYER Filed Aug. 17, 1922 3 Sheets-Sheet llf6 zz K @cf/*22021* jr/mlm @f/:draw

l Dec. 9, 1924. 1,518,951

F. B. ANDRUS BUCKET coNvEYER Filed Aug. 1v, 1922 l 3 sheets-sheet 2 Ja,,2'4" v Z4 f5 /ml/m @Mm/ww nec. '9, 1924.

F. B. ANDRUS BUCKET CONVEYER Filed Aug. 1'?, 1922 3 Sheets-Sheet 3Patented Dec. 9, 1924.

FRANKLIN B. ANDRUS, OF CHICAGO, ILLNOIS.

BUCKET CONVEYER.

Application filed August 17, 1922. Serial No. 582,540.

To all 107mm it may conce/rn.'

Be it known that l, FRANKLIN B. AN- nuis, a citizen of thc UnitedStates, residing at Chicago, in the county of Cook and State elIllinois, have invented a certain new and useful Improvement in BucketConveyers, of which the following is a specification. f

This invention relates to bucket conveyers, more particularly those inwhich the buckets are pivotally suspended upon a link belt and haveoverlapping lips for preventing the material from falling down betweenthem. Conveyers of this type have been made in which the buckets aresuspended from extensions of the inner links beyond the chain joints sothat in passing around the corner wheels, they travel on a larger circlethan the chains and are thus automatically separated at the turns sothat the overlaps may be reversed and prevented from improperly tiltingthe buckets. In such previously known conveyers, however, theconstruction is such that if the extension link breaks at any point, theentire apparatus is crippled, and it is necessary to take the chainapart and then reassemble with a fresh link. One of the objects of theinvention is to provide a construction such that if a bucket-supportingelement breaks, a repair` can be made by a series ol very simplemanipulations and the renewaliol a small and simply constructed part. 1nthe structure ot this invention, it a bucket supporting element breaks,the chain will still maintain its assembly and the only thing that needbe renewed is a small arm which carries the pin on which the bucket issupported. Another object is to provide a construction in which thelinks are pivotally connected by sleeves orv bushings instead of pins,thus enablingthe links to hold together when the link pins or shafts arewithdrawn for making a repair, said sleeves also forming the axle onwhich the rollers rotate. Another object ot' the invention is to providea simple interlocking connection between the. bucket supporting arms andthe links to which they are fastened. Another object is to providesimple and efiicient means for tightening the link pins and co-operatingparts without preventing free articulation between the links andassociated elements. Still another object is to provide advantageousmeans for greasingthe contacting` part-s and keeping` them greased for along period of time without attention.

' Referring to the accompanying` drawings in which like numerals denotelike parts throughout the several views:

Figure l is an assembly view showing a side elevation ot' the buckets,links and two of the corner wheels.

Figure 2 is a similar View on an enlarged scale, illustrating to betteradvantage the manner in which the extension arms operate toautomatically reverse the overlapping lips'ot' the buckets.

Figure 3 is a side elevation, showing the arrangement oi' the rollers onthe tracks and the relation of the links and their extension arms. y

Figure '4f is a plan section of a portion of a horizontal run showingthe parts assembled in their natural relation.

Figure 5 is an axial section of a roller with a portion of theassociated links and other elements, the link pin and extension armbeing shown in full.

Figure 6 is a sectional view on the line 6 6 of Figure 5.

Figure 7 is a perspective view of one of the inner links whichco-operates with the extension arm.

Figure 8 is a distributive detail view showing the preferredconstruction ot' the extension arm, link pin and bucket pin.

Figure S) is a perspective view ot the preferred form of bushing.

Figure l shows conventionally two chain carrying wheels 10 and l2,pivoted on widely separated shaftings ll to, in conventional manner,take care ol a chain mechanism 16 equipped with pivoted buckets 18ywhich must be kept in normal upright position during all conditions ofmovement of the chain, either vertically at the sides of the wheels l()and 12, or horizontally between them, the chain mechanism being, duringsaid horizontal movement, sustained from suitable rollers 20 engagingthe conventional form of horizontal track 22, clearly shown in Figure 2.The chain proper is made up of parallel links 24 and 26, pivotallyIconnected together on axes coincident with those of the rollers 20 andone link of each pair, in the particular case here illustrated, link 26,carries a projecting crank arm 28, whose crank pin 3() pifotallysupports one adjacent side of a bucket- 18. A problem solved.: by thisinvention is*l to niakle this crank'l arm v281. dbtachable for repairpurposes and to so pivotally mount adjacent pairs of links that thereplacement of an arm 28 may take place Without disconnecting thepivotal-1 are rangement of the links. In accomplishing this purpose, asleeve 82 is-insertedithrongh each end of the links to be pivotallyconnected. The sleeve isscutiawayrali itsfoppoL siteen'ds in notches5S-ofi substantially less depth. with reference to the'end oi. thelsleeve than: the; thickness off the" adjacentioutside linie ends; 24eand 26swhi'ch are to be seL cured together" iin spaced' apart relationKso that' when a snitahlewashenel and. clamping: devicel such asal nutl36 is applied to the shaft 38 on crank arnr 28,` the out'en linlo ends2li andi 26lv willy be clamped: in the not'chesv?) on; the ends of thefsleeve 32 and? spaced apart one from. the other1 so that they cannotpossibly: bind: upon'- the intermediate link ends 21-ll" and 2Bb whichare rotatably mounted* on the sleeve" 32. lThe spacing: apar-t ci* thelink ends2fflfl' and 2Ga by. tlie sleeye'- 32 saloient. so:that1 ill'the nut 36 is removed, thereby allowing the shaft. 38 and crank: amnr 2Sand attached parts, tol be removed, the link ends112lb and 26b Willstill? remain piyoted on the sl'eeue 2i` In other' \'voi.cls;- thepivotal relationship of the link' ends: established by thesleeverema-ins the same, at least under' con'.- ditions when a repair!is taking place, Whether the shaft 3S carrying the crank arm 28 is inplace or not.

Ai Wlieeh 2.0, heretofore referred? to, is journall'edi on' eachi sleeve325 between the links described, being separated from. che

inner adjacent links by'suitable Washers 39. rl`h`ese' Wheels are'preiienably made hollowr so as to provide' ai lubricant containingchamber 450 accessibley through a removable screw cap 42. Lubricant in.these'l chamu berslllisa'dhpted' to loW through passages fnl-Lll in'th'e hlubs1-l6 of the Wheels to passages 48' on the ciif'fcumflereneesoil': J@he sleeves 32 and! extending longitudinally thereon under thelbearing, surfaces 50ct tlie link ends 243" and 26, whereby lubricant. incl'iamb'er lfd is automatically supplied? to` the`= beai'riings oil the'link endsto' llubrioa'le tllein.y ois* they rock on the sie the los cand5 by they buckets 118i is substantial, it is' desirable that( thecrank: arms: 28` be secured. in n'on--re-tatable relay` tions-lupi with.the adjacent link 2er; @ne desirableJ n'fianner o'i doin-g this andithat shown in@ the drawing consists-1 in first iiaeei enlarging the linkend 26, as clearly shown inilignre 7,.a-nd\ thenproridingit: with arecess on depression 523 of non-circular form.. adapted to receive anon-circular block. 54provided at` the juncture of crank arm 28 andshaft38 (Figure 8). Obviously, when the parts are assembled With this block54; in recess 52 and then the locking devioet-S@ is= applied to the endof the shaft 38, the crank arm 28 is secured just as rigidly inrelationshipitosthe link 2"-'j\as thoughl itl were made integraltherewith' as in. thev prior. art In: addition, my device has thedistinct@ admantagethat' ith anything l1appenstotllecnanlo pin. 30,' orlthe crank anni theoperatorv cani ab once releaseV cherr look-ingdeviceand substitute new parts without pivotally disconnecting the'ychain! andi the supporting Wheel 20 as isf necessary' in the prion' ain.

In order. tha-ti the device may causeAk as little trouble as possiblethrough. 'frictiom the links. are.l made of sufficient site sotliattheslee\fe 'orfbushing 32'canl belarge enough tol forni. ample ybearingsurfaces 50 for. the link ends 2:1? and 2Gb" and thelink end 26l is madeoii ample size to receive the block 545! having? tapered edges 55eshownk in the drawings,.. the saine beingof sufficient' size to guardas. tar as possible against break,- agerat' this ooint.

lVhat' Ii cl imi is.:

L'. In mechanism olithe class described, two painsot links havingVinteriitting ends, sleeve*y through said linkr ends affording pivotal:connection between them, a rollen jo'uiinaledk oni the sleeveintermediate the links, meanson: the sleeve spacing` one pair of! links'from. the other pair oil links and roller, crank armV fior supporting abucket and means extending' through the sleeve for detachably securingthe arm in rigid positionl with. reference to one link.

2..I1n mechanism oii the class described", two ypairs of' links havingint'crttingl ends, a2 sleeve throngh said link ends a'lioiid-ingpivotal! connection. between them, ax roller journalecl on the sleeveintermediate the links, means on. the sl'eeuespacing one pair of.wlinksy from the other pair of links andi roller, a. crank armi lionsupporting a bucket, and means extending tlirouglr th' sleeve fordetaichabljT seem-'ing tliearm in; rigid; pos-iVH tion with; ile-*fersce to one iii s slf seeuir means inelndin-g a non .f ont. the eilanikarm fitting into a recess for it. iir another part.

lin Witness whereof, l? have here'ifilnilloK siubscribed my nain..

FRANKLIN B. ANDRS;

